Huawei FusionCol8000-E240 User Manual page 157

FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
Alarm ID Alarm Name
A003-01 Return air low
temperature alarm
Issue 02 (2021-04-15)
Alarm
Severity
Warning
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
● The temperature
sensors or
temperature and
humidity sensors
are located in
inappropriate
positions.
● The thermal load
power is low.
● The ambient
temperature is
below the lower
threshold.
● The low
temperature alarm
threshold is
inappropriate.
● The value detected
by the temperature
sensor or
temperature and
humidity sensor is
different from the
actual value.
● The air filters are
blocked.
8 System Maintenance
Solution
1. Adjust the positions
of the temperature
sensors or
temperature and
humidity sensors.
2. Contact Huawei
technical support.
3. Measure the
ambient
temperature. Check
whether other
causes exist if the
alarm persists in a
long time after
startup.
4. Adjust the low
temperature alarm
threshold.
5. Calibrate or replace
the temperature
sensor or
temperature and
humidity sensor.
6. Maintain or replace
the air filters.
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